Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a display screen or portion thereof with graphical user interface embodying the present design.

The broken lines in the FIGURE illustrate an environmental tablet device and its display screen or portion thereof with a graphical user interface that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 